Concentration tank blower device

Abstract

The utility model relates to a concentration tank blower device which comprises an air supply pipe, a blower main pipe and a blower pipe network, and an air supply hose is connected between the air supply pipe and the blower main pipe; the blast pipe network comprises a plurality of blast branch pipes extending into the bottom of the concentration tank, a rotatable concentrator is mounted in the concentration tank, and the blast main pipe and the plurality of blast branch pipes are respectively connected to the concentrator. Through the arrangement of the air supply pipe, the blast main pipe and the blast pipe network, a structural foundation for blowing air to the bottom of the concentration tank can be formed. The air supply pipe is mainly used for introducing an external air source, and the blast main pipe and the blast pipe network are respectively used for distributing blast and blowing the bottom of the concentration tank, so that underflow materials in the concentration tank can be blown away, and accumulation and hardening of the underflow materials are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal preparation, in particular to a kind of enrichment pool air blast device. BACKGROUND

[0002] Thickener is the equipment for the continuous treatment of coal slime water, installed in the thickening pool, the coal slime water entering the thickening pool combines with high molecular flocculants to form larger flocs, which are deposited due to gravity and gathered at the bottom of the thickening pool, thereby forming a bottom flow with higher concentration, which is pumped out by a slurry pump and fed into a filter press for further dewatering.

[0003] The overflow water after clarification flows into an overflow water tank from the periphery of the pool body as circulating water for the coal preparation plant. If the bottom flow is not pumped out in time, the bottom flow will accumulate at the bottom of the thickening pool, and the stroke pressure of the thickener will increase.

[0004] When the stroke pressure exceeds the rake lifting pressure, the rake of the thickener is lifted, but when the amount of the accumulated bottom flow exceeds the maximum lifting height of the rake, the rake can no longer be lifted, at which time the accumulated coal slime will bury the rake, and when the accumulation reaches a certain degree, the rake will not be able to rotate, resulting in the phenomenon of "rake pressing", which will seriously affect the production of the coal preparation plant. Generally, when the machine is stopped for more than one week, the coal slime water in the thickener should be emptied to check the condition of the rake to ensure that the rake is intact.

[0005] How to prevent the bottom flow material from being seriously accumulated after the thickener is stopped to cause the rake pressing is a technical problem that needs to be focused on in the operation of the coal preparation plant. CONTENT OF THE INVENTION

[0006] The purpose of the present application is to provide a kind of enrichment pool air blast device, can carry out air blast cleaning to the material at the bottom of the thickening pool, prevent the bottom flow material from appearing hardening at the bottom of the thickening pool, reduce the possibility of the occurrence of the rake pressing condition.

[0007] In order to achieve the above-mentioned purpose, the present application provides a kind of enrichment pool air blast device, comprising: air supply pipe, air blast main pipe and air blast pipe network, air supply pipe is connected with air blast main pipe between sending air hose;

[0008] The air blast pipe network includes a plurality of air blast branch pipes extending into the pool bottom, a rotatable thickener is installed in the thickening pool, and the air blast main pipe and the plurality of air blast branch pipes are connected to the thickener.

[0009] In an optional embodiment, the thickener includes a feed sleeve and a rake frame, the air blast branch pipes are vertically connected to the air blast main pipe, including two feed air blast branch pipes extending into the feed sleeve, and a plurality of rake frame air blast branch pipes connected to the rake frame, and the bottom end depths of different rake frame air blast branch pipes are set in accordance with the inclination slope of the rake frame.

[0010] In an alternative embodiment, one end of the air supply pipe is led out from the air compressor room, and the other end extends to the central part of the thickening tank. A maintenance platform is arranged on the top of the thickening tank and can rotate synchronously with the rake frame. The extending end of the air supply pipe is arranged above the maintenance platform.

[0011] In an alternative embodiment, the extending end of the air supply pipe is connected with an air supply manual valve and an air supply quick connector. The air supply quick connector is connected with the air supply hose, and the air supply hose is connected with a hose quick connector. The hose quick connector is arranged in pair with the air supply quick connector.

[0012] In an alternative embodiment, the air blowing main pipe is arranged on the maintenance platform and includes an elbow structure below the air supply pipe. The air blowing main pipe is arranged horizontally.

[0013] In an alternative embodiment, the feeding sleeve is arranged at the center of the thickening tank. The elbow section of the air blowing main pipe is arranged at the feeding sleeve part. A main pipe quick connector is connected with the air inlet end of the air blowing main pipe. The main pipe quick connector can be connected and disconnected with another hose quick connector on the air supply hose.

[0014] In an alternative embodiment, two feeding air blowing branch pipes are arranged in parallel and extend into the bottom of the feeding sleeve. The extending depth of the feeding air blowing branch pipes into the bottom of the tank is the same.

[0015] In an alternative embodiment, the extending depth of the rake frame air blowing branch pipe into the bottom of the tank is smaller than the extending depth of the feeding air blowing branch pipe into the bottom of the tank. The extending depth of each rake frame air blowing branch pipe into the bottom of the tank gradually increases from outside to inside with respect to the radial direction of the thickening tank.

[0016] In an alternative embodiment, the distance between the bottom of the air blowing branch pipe and the bottom of the thickening tank is 5-15 cm.

[0017] In an alternative embodiment, the bottom of each air blowing branch pipe is provided with an anti-blocking assembly. The anti-blocking assembly includes a 90° turning elbow and an anti-blocking baffle. The turning elbow is arranged in the direction corresponding to the rotating direction of the thickening machine. The anti-blocking baffle includes a V-shaped structure and is connected with the bottom outlet of the turning elbow.

[0018] The air supply pipe, the air blowing main pipe and the air blowing pipe network can form a structure basis for blowing air to the bottom of the thickening tank. The air supply pipe is mainly used for introducing external air source. The air blowing main pipe and the air blowing pipe network are used for respectively distributing air blowing and blowing the bottom flow material of the thickening tank, so as to blow away the bottom flow material of the thickening tank and reduce the accumulation and hardening of the bottom flow material.

[0019] The air supply hose connected between the air supply pipe and the air blast main pipe can facilitate the soft and hard connection between the air supply pipe and the air blast main pipe, so as to facilitate the blowing and uniform distribution of the bottom flow material under the rotating state of the thickener.

[0020] In combination with the rotation of the thickener, the structure of the thickener can facilitate efficient blowing without dead angle under the state of driving rotation of the air blast main pipe and the air blast pipe network, so as to loosen the bottom sludge in the thickening tank and prevent the sludge from being hardened.

[0021] The thickening tank is provided with a rotatable thickener, and the air blast main pipe and the air blast pipe network are respectively connected and installed on the thickener to realize the blowing working condition under the rotating state.

[0022] The air blast pipe network includes a plurality of air blast branch pipes extending into the bottom of the tank, which are used for directly blowing the bottom flow material to realize the disturbance of the bottom flow material and reduce the deposition and hardening.

[0023] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 It is a schematic view of the installation structure of the thickener in the thickening tank in the present application.

[0026] Figure 2 It is a schematic view of the arrangement structure of the air blast device of the thickening tank in the thickening tank in the present application.

[0027] Figure 3 It is a schematic view of the side view structure of the air blast branch pipe in the present application. Figure 2

[0028] It is a schematic view of the top view structure of the air blast branch pipe in the present application. Figure 4 Figure 2 It is a schematic view of the front view structure of the bottom of the air blast branch pipe in the present application.

[0029] Figure 5 It is a schematic view of the side view structure of the bottom of the air blast branch pipe in the present application.

[0030] Figure 6 It is a schematic view of the top view structure of the bottom of the air blast branch pipe in the present application.

[0031] Figure 7

[0032] Figure legend:​​

[0033] 1-concentration tank;

[0034] 2-concentration machine; 21-feeding sleeve; 22-rake frame; 23-inspection platform;

[0035] 3-air supply pipe; 31-air supply manual valve; 32-air supply quick connector;

[0036] 4-air blowing main pipe; 41-main pipe quick connector;

[0037] 5-air blowing pipe network; 51-air blowing branch pipe; 511-feeding air blowing branch pipe; 512-rake frame air blowing branch pipe;

[0038] 6-air blowing hose; 61-hose quick connector;

[0039] 7-anti-blocking assembly; 71-diversion elbow; 72-anti-blocking baffle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0041] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships of the products of the present application when they are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The blower device of the thickener 2 in the application is mainly used for blowing and cleaning the thickening pool 1 in the coal preparation plant, so as to prevent the deposition and hardening of the underflow material on the pool bottom after the thickener 2 is stopped.

[0044] Referring to Figure 1 The blower device of the thickening pool in the application is improved on the basis of the structure of the thickener 2 in the thickening pool 1, and the composition of the blower device is installed on the thickener 2, so that dynamic blowing and loosening can be realized by following the rotation of the thickener 2.

[0045] Combined with Figures 2-4 The blower device of the thickening pool mainly comprises a supply pipe 3, a blower main pipe 4 and a blower pipe network 5. The supply pipe 3 is mainly used for introducing the air source from the outside, and the air source is supplied to the whole blower device through the supply pipe 3. The air source has a certain blowing pressure, can overcome the pressure drop in the transmission process, and can effectively blow the pool bottom. Specifically, the supply pipe 3 can be a low-pressure air pipe, and the pipeline pressure can be 0.4-0.6 MPa, which can fully meet the blowing requirements of the underflow material in the thickening pool 1.

[0046] The blower main pipe 4 is mainly used for introducing the external low-pressure air and distributing the introduced low-pressure air to the blower pipe network 5 for blowing.

[0047] The blower pipe network 5 is used for extending into the pool bottom of the thickening pool 1 and directly blowing the underflow material, so as to blow away the underflow material in the thickening pool 1 and reduce the accumulation and hardening of the underflow material.

[0048] The blower device of the thickening pool in the application is installed on the basis of the structure of the thickener 2, and the blower main pipe 4 and the blower pipe network 5 can be installed on the thickener 2 based on the rotation of the thickener 2. The supply pipe 3, the blower main pipe 4 and the blower pipe network 5 are rigidly installed structures, so that a soft connection needs to be made between the supply pipe 3 and the blower main pipe 4. The air supply hose 6 connected between the supply pipe 3 and the blower main pipe 4 can flexibly connect the rigidly installed pipelines for normal rotation blowing.

[0049] From the perspective of the effect of dynamic blowing and loosening, the blower pipe network 5 comprises a plurality of blower branch pipes 51 extending into the pool bottom. The thickening pool 1 is provided with a rotatable thickener 2. The blower main pipe 4 and the plurality of blower branch pipes 51 are connected to the thickener 2, so that the blower main pipe 4 and the blower branch pipes 51 can rotate with the thickener 2. The end of the blower branch pipe 51 extending into the pool bottom blows and loosens the underflow material during the rotation.

[0050] The thickener 2 comprises a feeding sleeve 21 and a rake frame 22, the air blowing branch pipes 51 are vertically connected on the air blowing main pipe 4, comprising two feeding air blowing branch pipes 511 extending into the feeding sleeve 21, and a plurality of rake air blowing branch pipes 512 connected on the rake frame 22, and the bottom end depths of the different rake air blowing branch pipes 512 are arranged in compliance with the inclination slope of the rake frame 22.

[0051] Through the arrangement mode, the air blowing and loosening of the central region of the thickening tank 1 can be maintained, and in combination with the rotation of the thickener 2, the air blowing and loosening of the non-central region is carried out through the plurality of rake air blowing branch pipes 512, so that all regions of the thickening tank 1 can be completely covered in the dynamic rotation air blowing and loosening process, and the dead angle treatment is ensured.

[0052] One end of the air supply pipe 3 is led out from the air compressor room, and the other end extends to the central region of the thickening tank 1, the top of the thickening tank 1 is provided with a maintenance platform 23 which can rotate synchronously with the rake frame 22, and the extension end of the air supply pipe 3 is arranged above the maintenance platform 23, preferably, the pipe diameter of the external low-pressure air supply pipe 3 is DN25, the pressure is 0.4-0.6 MPa, the air supply pipe 3 is led out from the air compressor room to the center of the thickening tank 1, and the distance from the maintenance platform 23 is about 1.6 m in height, and a certain operation space is maintained.

[0053] The extension end of the air supply pipe 3 is connected with an air supply manual valve 31 and an air supply quick connector 32, the air supply quick connector 32 is connected with an air supply hose 6, the air supply hose 6 is connected with a hose quick connector 61, the hose quick connector 61 is arranged in a matched mode with the air supply quick connector 32, and the quick connection and quick disconnection of the hose are ensured, the air supply hose 6 in the utility model is wound after the rotation of the thickener 2, so that the hose needs to be disassembled and washed after the rotation, the operation of the next air blowing and loosening is facilitated, and the length of the hose is appropriate to ensure that the thickener 2 runs one circle.

[0054] Through the quick connection and quick disconnection mode and the arrangement of the manual valve on the air supply pipe 3, the disassembly and assembly of the hose and the control of the air blowing are facilitated, and the utility has strong applicability in the operation site.

[0055] The air blowing main pipe 4 is installed on the maintenance platform 23, comprising a return bend structure below the air supply pipe 3, and the air blowing main pipe 4 is horizontally arranged. Specifically, the air blowing main pipe 4 of the return bend structure is fixedly installed on the maintenance platform 23, and is a horizontal pipe section, which is beneficial to the vertical downward connection of different air blowing branch pipes 51 on the air blowing main pipe 4.

[0056] The feeding sleeve 21 is arranged at the center of the thickening tank 1 and rotates synchronously with the thickener 2, the return bend section of the air blowing main pipe 4 is arranged at the feeding sleeve 21, which is beneficial to the connection and fixation of the two feeding air blowing branch pipes 511.

[0057] The air blowing main pipe 4 is connected with a main pipe quick connector 41 at the air inlet end, which can be connected and disconnected with another hose quick connector 61 on the air supply hose 6.

[0058] Through the arrangement, the air supply hose 6 can be connected between the air supply pipe and the air blowing main pipe 4, and the operation efficiency can be improved to the maximum.

[0059] The bottom of the concentration pool 1 is a whole conical structure, and the bottom of the central part is deeper, and the underflow material is easily deposited in the central area of the concentration pool 1.

[0060] Therefore, it is necessary to consider increasing the air blowing capacity, and the two feeding air blowing branch pipes 511 are arranged in parallel and extend into the bottom of the feeding sleeve 21, and the depths of the two feeding air blowing branch pipes 511 extending into the pool bottom are the same.

[0061] From the perspective of the conical surface structure of the concentration pool 1, the cross section of the rake frame 22, especially the bottom of the rake frame 22, is in an inclined state, the depth of the rake air blowing branch pipe 512 extending into the pool bottom is less than the depth of the feeding air blowing branch pipe 511 extending into the pool bottom, and the extending depth of each rake air blowing branch pipe 512 gradually increases from the outside to the inside with respect to the radial direction of the concentration pool 1, so that the arrangement of the rake air blowing branch pipe 512 can follow the structure of the concentration pool 1, and the air blowing and loosening without dead angle during rotation can be ensured to the maximum.

[0062] The rake frame 22 is provided with a mud scraping plate, and the rake air blowing branch pipe 512 is installed at the front end of the mud scraping plate in the direction of rotation of the rake frame 22.

[0063] The distance between the bottom of the air blowing branch pipe 51 and the bottom of the concentration pool 1 is 5-15 cm. Preferably, the distance between the bottom of the air blowing branch pipe 51 and the bottom of the concentration pool 1 is 10 cm, which can maintain a certain air blowing diffusion, and further ensure the air blowing and loosening coverage of the air blowing branch pipe 51.

[0064] Referring to Figures 5-7 Since the air blowing loosening is performed on the material at the bottom of the concentration pool 1, the anti-blocking effect needs to be considered, and the bottom of each air blowing branch pipe 51 is provided with an anti-blocking assembly 7, which includes a 90° diversion elbow 71 and an anti-blocking baffle 72.

[0065] Further, the anti-blocking baffle 72 can facilitate the formation of the jet gas disturbance, further increasing the disturbance effect on the underflow material. Specifically, the anti-blocking baffle 72 includes an angle iron with a V-shaped structure, the opening of the V-shaped structure is directed to the air outlet of the turning elbow 71, and is fixedly connected to the bottom outlet of the turning elbow 71, so as to ensure that the thickener 2 drives the air blowing branch pipe 51 to move, that is, to blow air, and to prevent the coal slime from entering, thereby ensuring the loosening effect on the underflow material.

[0066] In the utility model, the blast main pipe 4 and the blast pipe network 5 of the blast device of the thickener are welded and fixed by angle iron, and the blast manual valve 31 on the blast pipe 3 can be opened or closed at any time according to the requirement. The blast device is driven to rotate by the rotation of the thickener 2, so that the underflow coal slime in the thickener 1 can be loosened efficiently without dead angle, and the thickener 1 is prevented from being hardened. The anti-blocking device prevents the coal slime from entering the blast pipe when the rake frame 22 rotates, so that the blast pipe is not blocked and the blast effect is not lost.

[0067] The effective use of the blast device of the thickener can prolong the service life of the rake frame 22 and prolong the cleaning cycle of the thickener 1, thereby reducing the labor intensity of workers.

[0068] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0069] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A concentrated cell blow tank characterized by, The utility model provides a kind of air supply pipe, blast main pipe and blast pipe network, air supply pipe is connected with blast main pipe between blast main pipe and blast pipe network with blast hose; The blast pipe network includes multiple blast branch pipes extending into the bottom of the pool, and a rotatable thickener is installed in the thickening tank, and the blast main pipe and multiple blast branch pipes are connected to the thickener. The thickener includes a feed sleeve and a rake frame, the blast branch pipes are vertically connected to the blast main pipe, including two feed blast branch pipes extending into the feed sleeve, and multiple rake frame blast branch pipes connected to the rake frame, and the bottom end depth of different rake frame blast branch pipes is set in accordance with the inclination slope of the rake frame.

2. The concentrate cell forced air device of claim 1, wherein, One end of the air supply pipe is led out from the air compressor room, and the other end extends to the central part of the thickening tank, the top of the thickening tank is provided with a maintenance platform that can rotate synchronously with the rake frame, and the extended end of the air supply pipe is arranged above the maintenance platform.

3. The concentrate cell forced air device of claim 2, wherein, The extended end of the air supply pipe is connected with an air supply manual valve and an air supply quick connector, the air supply quick connector is connected with the blast hose, the blast hose is connected with a hose quick connector, and the hose quick connector is paired with the air supply quick connector.

4. The concentrate cell air blowing device of claim 3, wherein The blast main pipe is installed on the maintenance platform, including a return bend structure below the air supply pipe, and the blast main pipe is horizontally arranged.

5. The concentrate cell air blowing device of claim 3, wherein The feed sleeve is arranged at the center of the thickening tank, the return bend section of the blast main pipe is arranged at the feed sleeve position, and a main pipe quick connector is connected to the air inlet end of the blast main pipe, which can be connected and disassembled with another hose quick connector on the blast hose.

6. The concentrate cell forced air device of claim 2, wherein, The two feed blast branch pipes are arranged in parallel and extend into the bottom of the feed sleeve, and the depth of extending into the bottom of the pool is the same.

7. The concentrate cell forced air device of claim 2, wherein, The depth of extending into the bottom of the pool of the rake frame blast branch pipe is less than that of the feed blast branch pipe, and the extending depth of each rake frame blast branch pipe gradually increases from outside to inside relative to the radial direction of the thickening tank.

8. The concentrate cell forced air device of claim 2, wherein, The distance between the bottom of the blast branch pipe and the bottom of the thickening tank is 5-15 cm.

9. The concentrate cell blowing apparatus according to any one of claims 1 to 8, characterized in that, A anti-blocking assembly is arranged at the bottom of each blast branch pipe, which includes a 90° elbow and an anti-blocking baffle, the direction of the elbow corresponds to the rotation direction of the thickener, and the anti-blocking baffle includes a V-shaped structure connected to the bottom outlet of the elbow.

10. The concentrate cell blowing apparatus according to any one of claims 1 to 8, wherein ​

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